Convert Seconds to Milliseconds
1 second is 1,000 ms. One second is exactly 1000 milliseconds.
One second is 1000 milliseconds. To convert seconds to milliseconds, multiply by 1000; to go the other way, divide by 1000 or multiply by 0.001. The factor is exact rather than rounded: it follows from BIPM SI Brochure. The SI base unit of time, fixed since 1967 by the caesium-133 hyperfine transition frequency of 9,192,631,770 Hz.
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Milliseconds
1,000 ms
- Seconds × 1000
value * 10001,000 ms
1 second in every time unit
| Unit | Value | Exact factor |
|---|---|---|
| microseconds | 1,000,000 µs | × 1,000,000 |
| milliseconds | 1,000 ms | × 1,000 |
| seconds (as entered) | 1 s | — |
| minutes | 0.01666666667 min | × 0.0166666666667 |
| hours | 0.0002777777778 h | × 0.000277777777778 |
| days | 0.00001157407407 d | × 0.0000115740740741 |
| weeks | 0.000001653439153 wk | × 0.00000165343915344 |
| months | 0.0000003802648621 mo | × 0.000000380264862082 |
| years | 0.00000003168873851 yr | × 0.0000000316887385068 |
Factors are entered by hand from BIPM SI Brochure rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert seconds to milliseconds?
- 1.Take the measurement in seconds.
- 2.Multiply by 1000 — that is how many milliseconds fit in one second.
- 3.To go back the other way, divide by 1000, or multiply by 0.001.
Seconds to milliseconds conversion table
| Seconds | Milliseconds |
|---|---|
| 1 s | 1,000 ms |
| 2 s | 2,000 ms |
| 3 s | 3,000 ms |
| 4 s | 4,000 ms |
| 5 s | 5,000 ms |
| 6 s | 6,000 ms |
| 7 s | 7,000 ms |
| 8 s | 8,000 ms |
| 9 s | 9,000 ms |
| 10 s | 10,000 ms |
| 12 s | 12,000 ms |
| 15 s | 15,000 ms |
| 20 s | 20,000 ms |
| 25 s | 25,000 ms |
| 50 s | 50,000 ms |
| 100 s | 100,000 ms |
What are seconds and milliseconds?
- Second (s)
- The SI base unit of time, fixed since 1967 by the caesium-133 hyperfine transition frequency of 9,192,631,770 Hz.
- Millisecond (ms)
- One thousandth of a second. Human reaction time runs about 250 ms, and a frame at 60 fps lasts 16.7 ms.
Source: BIPM SI Brochure — the second, and units accepted for use with the SI
Questions people actually ask
- How many milliseconds are in a second?
- 1000. One thousandth of a second. Human reaction time runs about 250 ms, and a frame at 60 fps lasts 16.7 ms.
- How do I convert milliseconds back to seconds?
- Divide by 1000, or multiply by 0.001 — they are the same operation.
Other time conversions
Milliseconds to seconds — the same conversion the other way.